supporting science, technology, and improved economic performance and financial literacy in the 21st century. and with the ongoing support of these institutions and foundations. and... this program was made possible by the corporation for public broadcasting. and by contributions to your pbs station from viewers like you. thank you. >> woodruff: the first presidential debate is behind them, but the two sides went at it again today. republicans said their man took it to the president in the denver duel. the obama camp charged the truth got trampled in the process. >> la night i thought was a great opportunity for the american people to see two very different visions for the country. and -- (applause) -- and i think it was helpful to be able to describe those visions. i said the president's vision is trickle-down government and i don't think that's what america believes in. i see instead a prosperity that comes through freedom. >> reporter: romney's reception at the event was reinforced by instant polling that he won last night's encounter by more than 2-1. but at an obama rally in den